Gothic architecture originated in 12th century Europe and is known for pointed arches, ribbed vaults, flying buttresses, stained glass windows, and decorative elements like gargoyles. Key features include pointed arches that allowed buildings to reach greater heights and widths, ribbed vaulting for fire protection, and flying buttresses for structural support which permitted thinner walls and larger windows. These elements made Gothic cathedrals and churches lighter and more ornate than previous Romanesque designs.